RNATrang TranJesslyn SmithLexi Talbot

By PresenterMedia.com

• DNA is located in the nucleus of eukaryotic cells

• A strand of DNA is moved from the nucleus out into the cytoplasm to be transcribed into RNA

• After the RNA is transcribed, it moves to the ribosome• It is then translated into a polypeptide, also known as protein synthesis

StructuresWhat if involved in RNA

• Transcription of the RNA occurs in the cytoplasm

tRNA

Types of RNA

M- Messenger: mRNA is the strand of RNA that is transcribed from the DNA. It is the strand of RNA that goes to the ribosome to be translated.

T- Transport: tRNA is the transports/ delivers the amino acid to the mRNA. Multiple tRNA bring many amino acids, which form a poly peptide.

mRNA

RNA polymerase moves along the antisense of DNA

Exons are coding DNA, Introns are

noncoding

Mature mRNA must remove the non coding region

Enzymes activate tRNA

mRNA and tRNA attach and deliver

amino acids

Binding amino acids make a polypeptide

chain

Elongation continues till it

reaches terminator

RNA polymerase detaches and

releases mRNA

Transcription“REMEMBER”

mRNA binds with ribosome at the ‘MET’

codon (initiation)

At the binding site, mRNA binds

to ribosomal subunit

Start codon is bound by the tRNA

tRNA with anti codon

corresponding to codon attached

Elongation: peptide bonds form between amino acids

Ribosome released used tRNA and

moves along mRNA to next codon

Elongation of the peptide furthers

DONE! Polypeptide released at stop

codon (termination)

Translation“Mastered”